The flavours in this cake were intensely salted caramel & very enjoyable. The Salted Caramel Layered Cake a great departure from chocolate and is addictively good!
Preheat the oven to 180C. Line the base & sides with parchment.
In a bowl, stir together flour, salt, baking powder & baking soda. Reserve.
In a stand mixer with paddle attachment, whisk butter & sugar until fluffy. Whisk in oil, then add eggs one by one, followed by the scraped vanilla bean and extract, then finally the salted caramel.
In 3 alternative lots, on lowest setting, fold in the flour mix & buttermilk, 1/3 rd at a time, ending with the buttermilk.
Divide between the 2 tins, and bake for about 30-35 minutes, until tester comes out clean.
Remove to cooling racks, and take out of tins. Cool completely on racks, then slice each into 2.
Filling and crumb coat
Whip the cream and butter with the icing sugar until stiff.
Whip in the salted caramel, then the mascarpone until just blended & smooth. Don't overmix.
Caramel Whipped Frosting
Whip the cream with the icing sugar until stiff.
Whip in the salted caramel, then the mascarpone just until mixed through. Don't overmix.
Assemble
Sandwich the layers with 1/4 th of the filling, using the last 1/4 for the crumb coat. Cover and chill for an hour, or overnight.
Frost the cake with the Salted Caramel Whipped Frosting, and pour any remaining salted caramel over the edges. Make sure the salted caramel is at room temperature and pourable.